ADE7166 Datasheet PDF - Analog Devices

No Preview Available ! Data Sheet Single-Phase Energy Measurement IC with 8052 MCU, RTC, and LCD Driver ADE7116/ADE7166/ADE7169/ADE7566/ADE7569 GENERAL FEATURES Wide supply voltage operation: 2.4 V to 3.7 V Internal bipolar switch between regulated and battery inputs Ultralow power operation with power saving modes (PSM) Full operation: 4 mA to 1.6 mA (PLL clock dependent) Battery mode: 3.2 mA to 400 µA (PLL clock dependent) Sleep mode Real-time clock (RTC) mode: 1.5 µA RTC and LCD mode: 38 µA (LCD charge pump enabled) Reference: 1.2 V ± 0.1% (10 ppm/°C drift) 64-lead RoHS package option Low profile quad flat package (LQFP) Operating temperature range: −40°C to +85°C ENERGY MEASUREMENT FEATURES Proprietary analog-to-digital converters (ADCs) and digital signal processing (DSP) provide high accuracy active (watt), reactive (var), and apparent energy (volt ampere (VA)) measurement <0.1% error on active energy over a dynamic range of 1000 to 1 at 25°C <0.5% error on reactive energy over a dynamic range of 1000 to 1 at 25°C (ADE7169 and ADE7569 only) <0.5% error on root mean square (rms) measurements over a dynamic range of 500 to 1 for current (Irms) and 100 to 1 for voltage (Vrms) at 25°C Supports IEC 62053-21, IEC 62053-22, and IEC 62053-23; EN 50470-3 Class A, Class B, and Class C; and ANSI C12-16 Differential input with programmable gain amplifiers (PGAs) supports shunts, current transformers, and di/dt current sensors (ADE7169 and ADE7569 only) 2 current inputs for antitamper detection in the ADE7116/ ADE7166/ADE7169 High frequency outputs proportional to Irms, active, reactive, or apparent power (AP) Table 1. Features Available on Each Device Feature Part No. Antitamper ADE7116, ADE7166, ADE7169 Watt, VA, Irms, Vrms ADE7116, ADE7166, ADE7169, ADE7566, ADE7569 Var ADE7169, ADE7569 di/dt Sensor ADE7169, ADE7569 MICROPROCESSOR FEATURES 8052-based core Single-cycle 4 MIPS 8052 core 8052-compatible instruction set 32.768 kHz external crystal with on-chip PLL 2 external interrupt sources External reset pin Low power battery mode Wake up from input/output (I/O), temperature change1, alarm, and universal asynchronous receiver/transmitter (UART) LCD driver operation Temperature measurement Real-time clock (RTC) Counter for seconds, minutes, and hours Automatic battery switchover for RTC backup Operation down to 2.4 V Ultralow battery supply current: 1.5 µA Selectable output frequency: 1 Hz to 16 kHz Embedded digital crystal frequency compensation for calibration and temperature variation of 2 ppm resolution Integrated LCD driver 108-segment driver for the ADE7566/ADE7569 and 104-segment driver for the ADE7116/ADE7166/ADE7169 2×, 3×, or 4× multiplexing LCD voltages generated internally1 or with external resistors Internal adjustable drive voltages up to 5 V independent of power supply level1 On-chip peripherals UART interface SPI or I2C Watchdog timer Power supply management with user selectable levels Memory: 16 kB flash memory, 512 bytes RAM Development tools Single pin emulation IDE based assembly and C-source debugging 1 Not available in the ADE7116. Rev. C Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 ©2007–2015 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com

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ADE7116/ADE7166/ADE7169/ADE7566/ADE7569 Data Sheet TABLE OF CONTENTS General Features ............................................................................... 1  Energy Measurement Features........................................................ 1  Microprocessor Features.................................................................. 1  Revision History ............................................................................... 3  General Description ......................................................................... 4  Functional Block Diagrams............................................................. 4  Specifications..................................................................................... 6  Energy Metering ........................................................................... 6  Analog Peripherals ....................................................................... 7  Digital Interface ............................................................................ 8  Timing Specifications ................................................................ 10  Absolute Maximum Ratings.......................................................... 15  Thermal Resistance .................................................................... 15  ESD Caution................................................................................ 15  Pin Configurations and Function Descriptions ......................... 16  Typical Performance Characteristics ........................................... 22  Performance Curves for the ADE7169 and ADE7569 Only. 25  Terminology .................................................................................... 26  Special Function Register (SFR) Mapping .................................. 27  Power Management........................................................................ 30  Power Management Register Details ....................................... 30  Power Supply Architecture........................................................ 33  Battery Switchover...................................................................... 33  Power Supply Management (PSM) Interrupt ......................... 34  Using the Power Supply Features ............................................. 36  Operating Modes ............................................................................ 38  PSM0 (Normal Mode) ............................................................... 38  PSM1 (Battery Mode) ................................................................ 38  PSM2 (Sleep Mode).................................................................... 38  3.3 V Peripherals and Wake-Up Events................................... 39  Transitioning Between Operating Modes ............................... 40  Using the Power Management Features .................................. 40  Energy Measurement ..................................................................... 41  Access to Energy Measurement SFRs ...................................... 41  Access to Internal Energy Measurement Registers................ 41  Energy Measurement Registers ................................................ 44  Energy Measurement Internal Register Details ..................... 45  Interrupt Status/Enable SFRs .................................................... 48  Analog Inputs.............................................................................. 50  Analog-to-Digital Conversion.................................................. 51  Fault Detection ........................................................................... 55  di/dt Current Sensor and Digital Integrator for the ADE7169/ADE7569 ................................................................... 56  Power Quality Measurements................................................... 58  Phase Compensation ................................................................. 60  RMS Calculation ........................................................................ 60  Active Power Calculation .......................................................... 63  Active Energy Calculation ........................................................ 65  Reactive Power Calculation (ADE7169/ADE7569) ............... 68  Reactive Energy Calculation (ADE7169/ADE7569).............. 69  Apparent Power Calculation..................................................... 73  Apparent Energy Calculation ................................................... 74  Ampere Hour Accumulation.................................................... 75  Energy to Frequency Conversion............................................. 76  Energy Register Scaling ............................................................. 77  Energy Measurement Interrupts .............................................. 77  Temperature, Battery, and Supply Voltage Measurements........ 78  Temperature Measurement ....................................................... 80  Battery Measurement................................................................. 80  External Voltage Measurement ................................................ 81  8052 MCU Core Architecture....................................................... 83  MCU Registers............................................................................ 83  Basic 8052 Registers ................................................................... 85  Standard 8052 SFRs.................................................................... 86  Memory Overview ..................................................................... 86  Addressing Modes...................................................................... 87  Instruction Set ............................................................................ 89  Read-Modify-Write Instructions ............................................. 91  Instructions That Affect Flags .................................................. 91  Dual Data Pointers ......................................................................... 93  Interrupt System ............................................................................. 94  Standard 8052 Interrupt Architecture ..................................... 94  Interrupt Architecture ............................................................... 94  Interrupt Registers...................................................................... 94  Interrupt Priority........................................................................ 95  Interrupt Flags ............................................................................ 96  Interrupt Vectors ........................................................................ 98  Interrupt Latency........................................................................ 98  Context Saving............................................................................ 98  Watchdog Timer ............................................................................. 99  Rev. C | Page 2 of 152

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Data Sheet ADE7116/ADE7166/ADE7169/ADE7566/ADE7569 Writing to the Watchdog Timer SFR (WDCON, Address 0xC0) .......................................................................... 100  Watchdog Timer Interrupt...................................................... 100  LCD Driver ................................................................................... 101  LCD Registers ........................................................................... 101  LCD Setup ................................................................................. 104  LCD Timing and Waveforms ................................................. 104  Blink Mode................................................................................ 105  Display Element Control......................................................... 105  Voltage Generation .................................................................. 106  LCD External Circuitry........................................................... 107  LCD Function in PSM2 Mode ............................................... 107  Flash Memory ............................................................................... 109  Flash Memory Overview......................................................... 109  Flash Memory Organization................................................... 110  Using the Flash Memory ......................................................... 110  Protecting the Flash Memory ................................................. 114  In Circuit Programming ......................................................... 115  Timers ............................................................................................ 116  Timer Registers......................................................................... 116  Timer 0 and Timer 1................................................................ 118  Timer 2 ...................................................................................... 119  Phase-Locked Loop (PLL) .......................................................... 121  PLL Registers ............................................................................ 121  Real-Time Clock (RTC) .............................................................. 122  RTC SFRs .................................................................................. 122  Read and Write Operations .................................................... 125  RTC Modes ............................................................................... 125  RTC Interrupts ..........................................................................125  RTC Calibration ........................................................................126  UART Serial Interface...................................................................127  UART SFRs ................................................................................127  UART Operation Modes ..........................................................130  UART Baud Rate Generation ..................................................131  UART Additional Features ......................................................133  Serial Peripheral Interface (SPI)..................................................134  SPI Registers ..............................................................................134  SPI Pins.......................................................................................137  SPI Master Operating Modes ..................................................138  SPI Interrupt and Status Flags .................................................139  I2C-Compatible Interface .............................................................140  Serial Clock Generation ...........................................................140  Slave Addresses..........................................................................140  I2C Registers...............................................................................140  Read and Write Operations .....................................................141  I2C Receive and Transmit FIFOs.............................................142  I/O Ports .........................................................................................143  Parallel I/O.................................................................................143  I/O Registers ..............................................................................144  Port 0...........................................................................................147  Port 1...........................................................................................147  Port 2...........................................................................................147  Determining the Version of the Device .....................................148  Outline Dimensions......................................................................149  Ordering Guide .........................................................................149  REVISION HISTORY 10/15—Rev. B to Rev. C Deleted ADE7156 and 64-Lead LFCSP_VQ Package ... Universal Changes to Figure 46 ......................................................................53 Updated Outline Dimensions......................................................150 Changes to Ordering Guide.........................................................151 11/08—Rev. A to Rev. B Added ADE7116/ADE7156 .............................................. Universal Changes to Table 1 ............................................................................1 Added Figure 2 ..................................................................................5 Changes to Table 13 ........................................................................16 Added Figure 10 and Table 14; Renumbered Sequentially........19 Added Exposed Pad Notation to Outline Dimensions ............148 Changes to Ordering Guide.........................................................149 12/07—Rev. 0 to Rev. A Added ADE7166/ADE7169.............................................. Universal Changes to Table 1 ............................................................................1 Changes to Ordering Guide.........................................................144 11/07—Revision 0: Initial Version Rev. C | Page 3 of 152

No Preview Available ! ADE7116/ADE7166/ADE7169/ADE7566/ADE7569 Data Sheet GENERAL DESCRIPTION The ADE7116/ADE7166/ADE7169/ADE7566/ADE75691 integrate the Analog Devices, Inc., energy (ADE) metering IC analog front end and fixed function DSP solution with an enhanced 8052 MCU core, an RTC, an LCD driver, and all the peripherals to make an electronic energy meter with an LCD display in a single device. The ADE measurement core includes active, reactive, and apparent energy calculations, as well as voltage and current rms measure- ments. This information is accessible for energy billing by using the built in energy scalars. Many power line supervisory features such as SAG, peak, and zero crossing are included in the energy measurement DSP to simplify energy meter design. The microprocessor functionality includes a single cycle 8052 core, a real-time clock with a power supply backup pin, an SPI or I2C interface, and a UART interface. The ready to use infor- mation from the ADE core reduces the program memory size requirement, making it easy to integrate complicated design into 16 kB of flash memory. The ADE7116/ADE7166/ADE7169/ADE7566/ADE7569 also include a 108-/104-segment LCD driver. In the ADE7166/ ADE7169/ADE7566/ADE7569, this driver generates voltages capable of driving LCDs up to 5 V. 1 Patents pending. FUNCTIONAL BLOCK DIAGRAMS IP 52 IN 53 VP 49 VN 50 DGND 63 AGND 54 VBAT 58 57 43 42 38 39 40 41 39 38 7 6 45 11 43 42 41 40 39 38 37 36 5 6 7 8 9 10 1.20V REF + PGA1 – ADC + PGA2 – ADC SPI/I2C SERIAL INTERFACE 3 × 16-BIT COUNTER TIMERS ENERGY MEASUREMENT DSP ADE7566/ADE7569 3V/5V LCD CHARGE PUMP 108-SEGMENT LCD DRIVER TEMP SENSOR TEMP ADC BATTERY ADC POWER SUPPLY CONTROL AND MONITORING PROGRAM MEMORY 16kB FLASH USER RAM 256 BYTES USER XRAM 256 BYTES VDCIN ADC LDO POR LDO SINGLE CYCLE 8052 MCU WATCHDOG TIMER DOWNLOADER DEBUGGER UART TIMER UART SERIAL PORT PLL RTC OSC 64 60 61 62 59 56 51 44 36 37 47 46 48 12 P2.0/FP18 13 P2.1/FP17 14 P2.2/FP16 44 P2.3 (SDEN/P2.3) 16 LCDVP2 18 LCDVA 17 LCDVB 15 LCDVC 4 COM0 ... 1 COM3 35 FP0 ... 20 FP15 14 FP16 13 FP17 12 FP18 11 FP19 10 FP20 9 FP21 8 FP22 7 FP23 6 FP24 5 FP25 55 FP26 1 FP27 2 FP28 45 Figure 1. ADE7566/ADE7569 Functional Block Diagram Rev. C | Page 4 of 152

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